Light intensity effects on the growth and biomass production of submerged macrophytes in different water strata

Jin, Shuquan; Ibrahim, Muhammad; Muhammad, Said; Khan, Sardar; Li, Gang

doi:10.1007/s12517-020-05924-4

Cited by 20 publications

(7 citation statements)

References 36 publications

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“…Sung et al (2015) reported the ability of Ceratophyllum demersum and E. crassipes for organic matter removal on both water and wet soil environments and amount of phosphorus and nitrogen reduced considerably in the wastewater treated with E. crassipes than other macrophytes. E. crassipes-is a good candidate for the removal of organic matters from the water (Jin et al, 2020). Phytoremediation treatment of coir retting wastewater using E. crassipes showed decreased chemical oxygen demand.…”

Section: Discussionmentioning

confidence: 99%

Phytoremediation of Nutrients From the Coir Retting Wastewater by Water Hyacinth, Eichhornia Crassipes

S.¹,

MURUGESAN²

2022

Poll Res

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Macrophytes are widely used to remove pollutants from the wastewater. These macrophytes showed special mechanisms to remove pollutants and translocate elements into plant tissue. The main aim of the study is to improve coir retting wastewater quality discharged from the retting pond using a macrophyte, Eichhornia crassipes. Phytoremediation treatment of coir retting wastewater using showed decreased TSS level. The mean initial TSS level was 19760 ± 400 mg/l before treatment and the removal of TSS was 58.4% after 10 days and 95.4% after 20 days (p<0.001). The percentage removal of nitrite was 41% after 6 days and increased significantly after 20 days of treatment (98%) (p<0.001). The mean initial sulphate level was 82.4 ± 8.3 mg/l and decreased more than 90% after 20 days of treatment. The chemical oxygen demand of the raw effluent was 10184 ± 263.2 mg/L and it decreased as 2092 ± 138.4 mg/l after 10 days and the percentage of chemical oxygen demand decreased after 20 days of treatment (p<0.001) (96.1%). The mean initial biological oxygen demand was 5028.2 ± 409.4 mg/l before treatment and 89.9% reduction was achieved after 10 days. Biological oxygen demand removal increased after 20 days of treatment (95.15%) (p<0.001).

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Section: Discussionmentioning

confidence: 99%

Phytoremediation of Nutrients From the Coir Retting Wastewater by Water Hyacinth, Eichhornia Crassipes

S.¹,

MURUGESAN²

2022

Poll Res

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“…Despite suspecting that wave disturbance is the main factor responsible for decreased macrophyte biomass in shallower areas, we cannot discard other factors. For example, high light intensity may limit submersed plants in shallow sites (Jin et al 2020). In addition, water level fluctuations and the presence of floating and emergent vegetation (common in Itaipu; Thomaz et al 2009) may also have a role in decreased biomass toward the shores of the reservoir.…”

Section: Discussionmentioning

confidence: 99%

Niche differentiation between a native and an invasive species of submersed macrophyte in a subtropical reservoir

2021

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Submersed macrophytes have important ecological roles but non-native invasive species may affect biodiversity and water uses. We investigated the native macrophyte Egeria najas and the invasive Hydrilla verticillata and measured their maximum colonization depth and its relationship with Secchi disk depth, their biomass along the depth gradient and their preferred depths of occurrence. The Itaipu Reservoir was monitored for seven years, during which maximum colonization depth and Secchi disk depth were measured. During a separate sampling, plants were collected to determine biomass along the depth gradient. Ancova showed that the maximum colonization depth of both species increased with increasing Secchi disk depth, but the maximum colonization depth of H. verticillata increased faster with increasing water transparency than did that of E. najas. Quadratic regression revealed that the biomass of each species peaks at intermediate depths. Hydrilla verticillata colonizes deeper regions than does E. najas. The patterns found in the present study can be explained by underwater light and, probably, wave disturbances. The preference of H. verticillata for deeper sites indicates that the ecological niches of the two macrophytes differ, and that H. verticillata has great potential to spread and accumulate biomass in reservoirs.

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“…We found that light intensity increased water temperatures leading to an indirect negative impact on macrophyte community biomass. This observation calls into question results from the literature where only the positive direct effect of light intensity on plant growth rate in aquatic ecosystems was considered, and thus effects on community biomass were not reported (Jin et al, 2020). Furthermore, since macrophytes greatly influence ecosystem-level processes in ponds (Iacarella et al, 2018;Lürig et al, 2021;Mo et al, 2015), climate warming could negatively affect trophic chains and ecosystem function (Gutt et al, 2021).…”

Section: Biomass Lrr Of the Target Speciesmentioning

confidence: 97%

Functional characteristics rather than co‐occurrences determine the outcome of interactions between neighbouring plants in sub‐Antarctic ponds: Consequences for macrophyte community biomass

et al. 2023

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Light intensity effects on the growth and biomass production of submerged macrophytes in different water strata

Cited by 20 publications

References 36 publications

Phytoremediation of Nutrients From the Coir Retting Wastewater by Water Hyacinth, Eichhornia Crassipes

Phytoremediation of Nutrients From the Coir Retting Wastewater by Water Hyacinth, Eichhornia Crassipes

Niche differentiation between a native and an invasive species of submersed macrophyte in a subtropical reservoir

Functional characteristics rather than co‐occurrences determine the outcome of interactions between neighbouring plants in sub‐Antarctic ponds: Consequences for macrophyte community biomass

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